Wire-connector



(No Model.)

C. H. MOINTIRE.

WIRE CONNECTOR.

Patented Apr. '7, 1896.

INVENTOR wnwessis:

wry rfi ATTORNEYS,

ihvrrnn STATES CHARLES H. MCINTIRE, OF NEIVARK, NEiV JERSEY.

WIRE-CONNECTOR.

SPECIFICATION forming part of Letters Patent No. 557,690, dated April 7,1896. Application filed February 15,1896. Serial No. 579,444. (Nomodel.)

To all whom it ntay concern:

Be it known that I, CHARLES H. MCINTIRE, a citizen of the United States,residing in Newark, county of Essex, and State of New Jersey, haveinvented certain new and useful Improvements in Vi'ire-Connectors; and Ido hereby declare the following to bea full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to letters of reference markedthereon, which form a part of this specification.

The object of my invention is to provide a connector for telephone ortelegraph wires of simple and cheap construction, and, further, tosecure a more perfect contact and to greatly reduce the cost ofmanufacture.

The invention consists in the improved wireconnector formed with adepression extending longitudinally through the entire length of thetube and arranged and combined substantiallyashereinafter described andfinally embodied in the claims.

'ith reference to the accompanying draw ings, Figure 1 is a sideelevation of my improved coupling; Fig. 2, an enlarged sectional view ofthe same, and Fig. a side elevation of a completed joint.

In said drawings, (4 represents a tube formed by a metallic strip, theedges of which are bent inwardly and are soldered or welded together,and thus form in said tube a depression (Z, extending longitudinallythrough its entire length. The tube is thus divided into two connectingchannels Z1 and 0, adapted to guide and receive from opposite ends thewires 6 and f, respectively.

The longer internal diameter of the tube a is approximatelyequal to thecombined diameter of the wires to be jointed, while the internal radiusof each channel is approxi mately equal to the radius of the wire to beinserted. The depression (Z is of such shape as to conform to the shapeof the wires and to thus increase the contactsurface with the samewithout interfering with the bearing surface between the two wires.

In practice the ends of the wires to be jointed are insertedfromopposite directions into their respective channels and are thentwisted together with the tubes substantially into the shape as shown inFig. 3.

It is essential in a wire joint to have a large bearing-surface with thewires to be united, and also to have a bearing-surface between the twowires within the joint and extending through its entire length.l-Ieretofore joints have been made which consisted of two tubesconforming to the shape and size of the wires, and which were solderedor otherwise united together, as in the United States Letters Patent No.347,625, or which consisted of an oval seamless tube with or without alongitudinal slot, as in the United States Letters Patent Nos. 31,933and 55,998, or of a metal strip bent into a double tube, substantiallyS- shaped in cross-section, as in United States Patent No. 535,592.Especially the coupling of Patent No. 451,933 is objectionable, not onlyon account of the great expense of manufacture, but also that the endsof the wires when inserted from opposite directions often meet in saidjoint and cannot pass each other, as there are no provisions made toguide said wires while being inserted.

In the coupling or joint of Patents No. 7,625 and No. 535,592 the wireswithin the joint are separated and thus have no bearingsurface betweenthemselves.

My present joint overcomes all these objections. As it is made of astrip of metal soldered or welded at its edges, and as it is providedwith a longitudinally-arranged depression, the said bearin g-surface isincreased without interfering with the bearing-surface between the twowires. The said depression also serves as guiding means for the wireswhile being inserted.

Having thus described my invention, what I claim as new, and desire tosecure byLetters Patent, is-

1. A connector for electric wires, consisting of an oval metal tube,having the longer internal diameter approximately equal to the combineddiameter of the wire to be jointed, and provided at one of its flatsides with a longitudinally-extending depression dividing said tube intotwo connecting channels, adapted to bear on and surround the greaterpart of the surface of the wires without interfering with thebearing-surface between surface between the said wires within theconnector, said tube being adapted to be twistedtogether with saidwires, substantially I 5 as shown and described.

In testimony that I claim the foregoing I have hereunto set my hand this10th day of February, 1896.

CHARLES H. MOINTIRE.

lVitnesses ALFRED GARTNER, CLARA E. DUNN.

